Reducing turbulent skin friction drag is a fundamental goal for aircraft transportation to
conserve energy and decrease emissions. We introduce an annular dielectric barrier …

We carry out direct numerical simulations of turbulent flow over riblets, streamwise-aligned
grooves that are designed to reduce drag by modifying the near-wall flow. Twenty riblet …

湍流/非湍流界面是流动中湍流和无旋流的边界, 其相关研究在加深对湍流与无旋流之间的物质,
动量和能量交换的理解有重要意义. 本文采用时间解析的二维粒子图像测速技术 …

A growing body of studies in wall-bounded turbulence has shown that the generation of wall-
shear stress fluctuations is directly connected with outer-layer large-scale motions. In the …

This paper introduces a viscous vortex model for predicting the optimal drag reduction of
riblet surfaces, eliminating the need for expensive direct numerical simulations (DNSs) or …

It is commonly known that riblets with sharper tip generally have better turbulent drag
reduction capacity, which, however, poses great challenges for manufacturing and makes …

An array of distributed round synthetic jets was used to control a fully developed turbulent
boundary layer. The study focused on the related skin friction drag reduction and …

Different from conventional streamwise-aligned riblets, converging and diverging (C–D)
riblets are arranged obliquely along the main-flow direction, intending to induce a large …

The turbulent/non-turbulent (T/NT) interface usually refers to the thin layer that separates
turbulent flow from irrotational flow. The research of T/NT interface is of great importance to …

发卡涡是湍流相干结构研究中最为关注的内容, 实现发卡涡三维结构的定量测量并进行流体动力
学分析, 对深入研究湍流相干结构, 实现湍流精准控制等具有重要意义. 本研究通过对合成射流 …